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RELATED PARTY TRANSACTIONS AND BALANCES (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement [Line Items]      
Salaries and benefits $ 757 $ 723 $ 956
Office and miscellaneous 117 286 359
Exploration and evaluation assets 231 5,723 5,361
Oniva International Services Corp. [Member]      
Statement [Line Items]      
Salaries and benefits 636 665 594
Office and miscellaneous 290 322 560
Exploration and evaluation assets 0 206 353
Total cost $ 926 $ 1,193 $ 1,507